CN203705570U - Phase shifting type anti-interference line parameter tester - Google Patents
Phase shifting type anti-interference line parameter tester Download PDFInfo
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- CN203705570U CN203705570U CN201420024317.4U CN201420024317U CN203705570U CN 203705570 U CN203705570 U CN 203705570U CN 201420024317 U CN201420024317 U CN 201420024317U CN 203705570 U CN203705570 U CN 203705570U
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- 230000010363 phase shift Effects 0.000 claims abstract description 41
- 238000012545 processing Methods 0.000 claims abstract description 21
- 238000001914 filtration Methods 0.000 claims description 19
- 238000005086 pumping Methods 0.000 claims description 16
- 238000012360 testing method Methods 0.000 claims description 12
- 238000005259 measurement Methods 0.000 abstract description 21
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000006698 induction Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 8
- 230000005611 electricity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 101000688543 Homo sapiens Shugoshin 2 Proteins 0.000 description 1
- 102100024238 Shugoshin 2 Human genes 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Disclosed in the utility model is a phase shifting type anti-interference line parameter tester comprising a housing and a detection circuit. The detection circuit consists of a power supply, a protection circuit, an exciting unit and a line parameter acquisition and processing module; and the input terminal of the line parameter acquisition and processing module is connected with a detected line. The exciting unit includes a phase shift circuit, a filter circuit, a phase splitting circuit, a power amplifier circuit, and a power output circuit, wherein the circuits are successively connected; the input terminal of the phase shift circuit is connected with an exciting source by a wiring terminal at a wiring terminal strip; and three output terminals of the power output circuit are respectively connected with the A phase, the B phase and the C phase of the detected line by three wiring terminals of the wiring terminal strip. According to the scheme, line parameter measurement can be carried out rapidly and efficiently; and induction voltages and interferences caused by same-tower erecting and crossing spanning can be separated. Moreover, the tester has advantages of good anti-interference performance, convenient operation, small and exquisite size, good portability, and simple structure.
Description
Technical field
The utility model relates to the testing apparatus field of ultra-high-tension power transmission line, is specifically related to the anti-interference line parameter tester of a kind of phase shift.
Background technology
At present, along with the development of high voltage power transmission technology, the situation of power circuit wiring on the same tower and scissors crossing is more and more, the mutual induced voltage of transmission line of electricity is high, serious interference, therefore the situation of power circuit wiring on the same tower and scissors crossing has badly influenced the accuracy of field data, has also affected tester and instrument safety simultaneously.
At present, the method that has now commercial measurement ultra-high-tension power transmission line parameter is electricity current method (20A-50A), the method need to be used powerful transformer, pressure regulator, isolating transformer, by discrete measurement instruments such as reometer, voltage table, power meters, by reading each table scale and try to achieve each parameter value after corresponding computing.But, there is obvious shortcoming in the method: the volume and weight of surveying instrument is very huge, the connection complexity of each instrument cubicle, need artificial reading deal with data, while measuring different parameters, need change and measure wiring and instrument wiring, testing experiment is loaded down with trivial details, has badly influenced the measurement of the situation ultra-high-tension power transmission line parameter of power circuit wiring on the same tower and scissors crossing.
Utility model content
The technical problems to be solved in the utility model is to provide one can rapidly and efficiently carry out line parameter circuit value measurement, can separate induced voltage and interference that wiring on the same tower and scissors crossing cause, good in anti-interference performance, easy to operate, volume is small and exquisite, good portability, the anti-interference line parameter tester of phase shift simple in structure.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
The anti-interference line parameter tester of a kind of phase shift, comprise shell and be located at the testing circuit in shell, described shell is provided with terminals of connecting wire row, described testing circuit comprises power supply and holding circuit, exciting unit and line parameter circuit value acquisition processing module, described power supply and holding circuit are connected with line parameter circuit value acquisition processing module with exciting unit respectively, the input end of described line parameter circuit value acquisition processing module is connected with detected circuit, described exciting unit comprises connected successively phase-shift circuit, filtering circuit, phase splitter, power amplifier, power output circuit, the terminals of connecting wire that the input end of described phase-shift circuit is arranged by terminals of connecting wire is connected with driving source, described phase-shift circuit by after the pumping signal phase shift of driving source output successively by inputting phase splitter after filtering circuit filtering, described phase splitter is separated into the pumping signal of input ABC three-phase and amplifies rear power input output circuit respectively by power amplifier, three terminals of connecting wires that three output terminals of described power output circuit are arranged by terminals of connecting wire are respectively connected with the ABC three-phase of detected circuit.
The anti-interference line parameter tester of the utility model phase shift has following advantage: exciting unit of the present utility model comprises connected successively phase-shift circuit, filtering circuit, phase splitter, power amplifier, power output circuit, the terminals of connecting wire that the input end of phase-shift circuit is arranged by terminals of connecting wire is connected with driving source, phase-shift circuit by after the pumping signal phase shift of driving source output successively by inputting phase splitter after filtering circuit filtering, phase splitter is separated into the pumping signal of input ABC three-phase and amplifies rear power input output circuit respectively by power amplifier, three terminals of connecting wires that three output terminals of power output circuit are arranged by terminals of connecting wire are respectively connected with the ABC three-phase of detected circuit, therefore the excitation that the utility model can produce respectively out of phase to the ABC three-phase of detected circuit by exciting unit, thereby can rapidly and efficiently carry out line parameter circuit value measurement, and induced voltage and the interference separation that other transmission line of electricity of transmission line of electricity wiring on the same tower to be tested and scissors crossing can be produced, can rapidly and efficiently carry out line parameter circuit value measurement, and can separate induced voltage and interference that wiring on the same tower and scissors crossing cause, there is good in anti-interference performance, easy to operate, volume is small and exquisite, good portability, advantage simple in structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the framed structure schematic diagram of testing circuit in the utility model embodiment.
Fig. 3 is the phase-shift circuit schematic diagram in the utility model embodiment.
Fig. 4 is the phase splitter schematic diagram in the utility model embodiment.
Fig. 5 is the one conspectus to be detected of application the utility model embodiment.
Fig. 6 is the another kind conspectus to be detected of application the utility model embodiment.
Marginal data: 1, shell; 11, terminals of connecting wire row; 2, testing circuit; 21, power supply and holding circuit; 22, exciting unit; 221, phase-shift circuit; 222, filtering circuit; 223, phase splitter; 224, power amplifier; 225, power output circuit; 23, line parameter circuit value acquisition processing module.
Embodiment
As depicted in figs. 1 and 2, the anti-interference line parameter tester of phase shift of the present embodiment comprises shell 1 and is located at the testing circuit 2 in shell 1, shell 1 is provided with terminals of connecting wire row 11, testing circuit 2 comprises power supply and holding circuit 21, exciting unit 22 and line parameter circuit value acquisition processing module 23, power supply and holding circuit 21 are connected with line parameter circuit value acquisition processing module 23 with exciting unit 22 respectively, the input end of line parameter circuit value acquisition processing module 23 is connected with detected circuit, exciting unit 22 comprises connected successively phase-shift circuit 221, filtering circuit 222, phase splitter 223, power amplifier 224, power output circuit 225, the terminals of connecting wire that the input end of phase-shift circuit 221 is arranged on 11 by terminals of connecting wire is connected with driving source, phase-shift circuit 221 by after the pumping signal phase shift of driving source output successively by inputting phase splitter 223 after filtering circuit 222 filtering, phase splitter 223 is separated into the pumping signal of input ABC three-phase and amplifies rear power input output circuit 225 respectively by power amplifier 224, three terminals of connecting wires that three output terminals of power output circuit 225 are arranged on 11 by terminals of connecting wire are respectively connected with the ABC three-phase of detected circuit.
As shown in Figure 3, the phase-shift circuit 221 of the present embodiment is to realize based on NE555 timer chip, the pumping signal of driving source output is inputted from left side, successively by the electric capacity (isolated DC signal) of 1 μ, 3K resistance, integrated transporting discharging, diode (rectification), after 3K resistance, the transistor 9013 in input left side amplifies rear input NE555 timer chip, undertaken exporting from No. 3 pins of NE555 timer chip after phase shift by NE555 timer chip, one tunnel driving LED 1 is luminous, LED1 is also in series with potentiometer W2, regulator potentiometer W2 is to change the brightness of LED 1, the phase place that reaches change input signal is the object of phase shift, thereby can realize the level and smooth phase shift within the scope of 0～360 °, in addition, separately leading up to after the transistor 9013 of inputting right side after diode (rectification), 3K resistance amplifies of NE555 timer chip No. 3 pins output exports filtering circuit 222 to from this transistorized emitter.It should be noted that, the phase-shift circuit 221 of the present embodiment is only exemplary illustration, also can adopt as required in addition the phase-shift circuit 221 of other type to realize pumping signal is carried out to phase shift.
As shown in Figure 4, the single-phase three-phase separate circuitry phase that turns that the phase splitter 223 of the present embodiment realizes for the coil winding based on the parallel San road power amplifier chips TDA2030 of layout and correspondence, the filtered pumping signal that filtering circuit 222 is exported is from the pin A ' input in the left side of phase splitter 223 shown in Fig. 4, then after phase splitter 223, input Yi road pumping signal is separated into ABC three-phase, from tri-pin outputs of ABC on the right side of phase splitter 223 shown in Fig. 4.It should be noted that, the phase-shift circuit 221 of the present embodiment is only exemplary illustration, also can adopt as required in addition the single-phase three-phase separate circuitry phase that turns of other type to carry out the single-phase three-phase that turns to pumping signal.
The power output circuit 225 of the present embodiment adopts TDA8950TH chip to realize, line parameter circuit value acquisition processing module 23 adopts EDA9033D chip to realize, EDA9033D chip is current conventional three phase electrical parameters module, for realizing line parameter circuit value collection and the processing to detected circuit, therefore its physical circuit does not repeat them here.Power supply and holding circuit 21 are except providing power supply to phase-shift circuit 221, filtering circuit 222, phase splitter 223, power amplifier 224, power output circuit 225, line parameter circuit value acquisition processing module 23; also comprise overvoltage, current foldback circuit; once there is overvoltage or overcurrent; overvoltage, current foldback circuit work; power supply and holding circuit 21 immediately deenergization are supplied with, thereby can effectively protect phase-shift circuit 221, filtering circuit 222, phase splitter 223, power amplifier 224, power output circuit 225, line parameter circuit value acquisition processing module 23.
As shown in Figure 1, the terminals of connecting wire row 11 of the present embodiment comprises 24 terminals of connecting wires (#1～#24), and the concrete function definition of 24 terminals of connecting wires (#1～#24) is as shown in table 1.
Table 1: 24 terminals of connecting wire definition lists of terminals of connecting wire row 11.
| Terminals of connecting wire number | Function definition | Terminals of connecting wire number | Function definition |
| #1 | Ground connection | #16 | The outlet of C current phasor measurement |
| #2 | The input of A phase power supply | #17 | A current phasor measurement inlet wire |
| #3 | The input of B phase power supply | #18 | B current phasor measurement inlet wire |
| #4 | The input of C phase power supply | #19 | C current phasor measurement inlet wire |
| #5 | A exports mutually | #20 | The outlet of A current phasor measurement |
| #6 | B exports mutually | #21 | The outlet of B current phasor measurement |
| #7 | C exports mutually | #22 | The outlet of C current phasor measurement |
| #8 | A phase voltage is measured input | #23 | Com turns usb signal output |
| #9 | B phase voltage is measured input | #24 | Phase adjusted terminal |
| #10 | C phase voltage is measured input | ? | ? |
| #11 | A current phasor measurement inlet wire | ? | ? |
| #12 | B current phasor measurement inlet wire | ? | ? |
| #13 | C current phasor measurement inlet wire | ? | ? |
| #14 | The outlet of A current phasor measurement | ? | ? |
| #15 | The outlet of B current phasor measurement | ? | ? |
Referring to table 1, in the present embodiment, terminals of connecting wire row 11 #2, #3, #4 terminals of connecting wire inside are connected with the input end of phase-shift circuit 221 respectively.Terminals of connecting wire row 11 #5, #6, #7 terminals of connecting wire inside are connected with three output terminals of power output circuit 225 respectively, #8～#23 terminals of connecting wire inside of terminals of connecting wire row 11 is connected with line parameter circuit value acquisition processing module 23 respectively, and terminals of connecting wire row 11 #24 terminals of connecting wire inside is connected with the adjustable side of the potentiometer W2 of phase-shift circuit 221.The present embodiment, when for measuring circuit impedance, uses #11～#16 terminals of connecting wire for the measurement of electric current; The present embodiment, when for measuring circuit electric capacity, uses #17～#22 terminals of connecting wire for the measurement of electric current.As the data that the present embodiment need be produced export data processing work station to, be connected with the USB port at data processing work station after #23 terminals of connecting wire being turned to USB adapter by COM serial port.
In the time using the present embodiment to carry out parameter testing to the circuit shown in Fig. 5, the terminals of connecting wire row 11 of the present embodiment is as shown in table 2 with the connected mode of the circuit shown in Fig. 5.
Table 2: the connected mode table of the circuit shown in terminals of connecting wire row 11 and Fig. 5.
| Circuit wiring point | Terminals of connecting wire number | Circuit wiring point | Terminals of connecting wire number |
| A | #5 | F | #9，#12 |
| B | #6 | G | #15 |
| C | #7 | H | #10，#13 |
| D | #8，#11 | I | #16 |
| E | #14 | ? | ? |
In the time using the present embodiment to carry out parameter testing to the circuit shown in Fig. 6, the terminals of connecting wire row 11 of the present embodiment is as shown in table 3 with the connected mode of the circuit shown in Fig. 6.
Table 3: the connected mode table of the circuit shown in terminals of connecting wire row 11 and Fig. 6.
| Wiring point | Connection terminal number | Wiring point | Connection terminal number |
| A | #5 | F | #9，#18 |
| B | #6 | G | #21 |
| C | #7 | H | #10，#19 |
| D | #8，#17 | I | #22 |
| E | #20 | ? | ? |
The course of work of the present embodiment is as follows: each terminals of connecting wire of terminals of connecting wire row 11 connects as requested; In the time of detection line parameter, exciting unit 22 is started working, phase-shift circuit 221 by after the pumping signal phase shift of driving source output successively by inputting phase splitter 223 after filtering circuit 222 filtering, phase splitter 223 is separated into the pumping signal of input ABC three-phase and amplifies rear power input output circuit 225 respectively by power amplifier 224, and three output terminals of power output circuit 225 apply pumping signal to the ABC three-phase of detected circuit; Then, line parameter circuit value acquisition processing module 23 gathers the parameter of detected circuit and will detect data transmission to data processing work station by #23 terminals of connecting wire.
The foregoing is only preferred implementation of the present utility model, protection domain of the present utility model is not limited in above-mentioned embodiment, and every technical scheme that belongs to the utility model principle all belongs to protection domain of the present utility model.For a person skilled in the art, some improvements and modifications of carrying out under the prerequisite that does not depart from principle of the present utility model, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (1)
1. the anti-interference line parameter tester of phase shift, it is characterized in that: comprise shell (1) and be located at the testing circuit (2) in shell (1), described shell (1) is provided with terminals of connecting wire row (11), described testing circuit (2) comprises power supply and holding circuit (21), exciting unit (22) and line parameter circuit value acquisition processing module (23), described power supply and holding circuit (21) are connected with line parameter circuit value acquisition processing module (23) with exciting unit (22) respectively, the input end of described line parameter circuit value acquisition processing module (23) is connected with detected circuit, described exciting unit (22) comprises connected successively phase-shift circuit (221), filtering circuit (222), phase splitter (223), power amplifier (224), power output circuit (225), the terminals of connecting wire that the input end of described phase-shift circuit (221) is arranged on (11) by terminals of connecting wire is connected with driving source, described phase-shift circuit (221) by after the pumping signal phase shift of driving source output successively by inputting phase splitter (223) after filtering circuit (222) filtering, described phase splitter (223) is separated into the pumping signal of input ABC three-phase and amplifies rear power input output circuit (225) respectively by power amplifier (224), three terminals of connecting wires that three output terminals of described power output circuit (225) are arranged on (11) by terminals of connecting wire are respectively connected with the ABC three-phase of detected circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420024317.4U CN203705570U (en) | 2014-01-15 | 2014-01-15 | Phase shifting type anti-interference line parameter tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420024317.4U CN203705570U (en) | 2014-01-15 | 2014-01-15 | Phase shifting type anti-interference line parameter tester |
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| Publication Number | Publication Date |
|---|---|
| CN203705570U true CN203705570U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420024317.4U Expired - Lifetime CN203705570U (en) | 2014-01-15 | 2014-01-15 | Phase shifting type anti-interference line parameter tester |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119662A (en) * | 2015-09-10 | 2015-12-02 | 湖南迈克森伟电子科技有限公司 | Radio anti-interference equipment |
-
2014
- 2014-01-15 CN CN201420024317.4U patent/CN203705570U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119662A (en) * | 2015-09-10 | 2015-12-02 | 湖南迈克森伟电子科技有限公司 | Radio anti-interference equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
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| CX01 | Expiry of patent term |